CVE Vulnerabilities

CVE-2021-4252

Improper Neutralization

Published: Dec 18, 2022 | Modified: Nov 07, 2023
CVSS 3.x
6.1
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[HTTP_USER_AGENT] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.

Weakness

The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.

Affected Software

Name Vendor Start Version End Version
Wp-ban Wp-ban_project * 2021-11-24 (excluding)

Extended Description

If a message is malformed, it may cause the message to be incorrectly interpreted. Neutralization is an abstract term for any technique that ensures that input (and output) conforms with expectations and is “safe.” This can be done by:

This weakness typically applies in cases where the product prepares a control message that another process must act on, such as a command or query, and malicious input that was intended as data, can enter the control plane instead. However, this weakness also applies to more general cases where there are not always control implications.

References